{"id":"vidhyamitra:city-day:perth:2000-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2000-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2000-05-13","date_display":"May 13, 2000 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2000,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451677.770833,"kali_year":5102,"ahargana":1863212.2708,"sun":{"sidereal_longitude":28.7289,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":145.1606,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":116.4317,"elapsed_within_tithi_degrees":8.4317},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":145.1606,"elapsed_within_degrees":11.8273},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":173.8895},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2000,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451677.770833,"ahargana":1863212.2708,"kali_year":5102,"ayanamsa_lahiri":23.8581,"grahas":{"sun":{"sidereal_longitude":28.737037999999984,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":146.491738,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false,"latitude":3.2956},"mars":{"sidereal_longitude":42.58203800000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":33.34223800000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":25.157938,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":20.852337999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":26.830337999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":98.0475,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":278.0475,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2000,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451677.770833,"kali_year":5102,"ahargana":1863212.2708,"sun":{"sidereal_longitude":28.7289,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":145.1606,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":116.4317,"elapsed_within_tithi_degrees":8.4317},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":145.1606,"elapsed_within_degrees":11.8273},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":173.8895},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.296,"elongation":116.432},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.296,"opposition_distance":63.568}},"eclipse_window_40days":[]},"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"sunriseLocal":"06:57","sunsetLocal":"17:29","solarNoonLocal":"12:13","dayLengthHours":10.542557804998191,"dayLengthDisplay":"10 Hours 32 Mins 33 Secs","nightLengthDisplay":"13 Hours 27 Mins 27 Secs","moonriseLocal":"14:11","moonsetLocal":"01:57","rahuKala":{"name":"Rāhu Kāla","start":"09:35","end":"10:54","startHours":9.57776990302451,"endHours":10.895589628649285,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:32","end":"14:51","startHours":13.531229079898832,"endHours":14.849048805523607,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:57","end":"08:16","startHours":6.942130451774963,"endHours":8.259950177399737,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:45","startHours":9.40206060627454,"endHours":9.75347919977448,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:23","end":"07:40","startHours":7.3814036936498875,"endHours":7.662538568449839,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.86199076077412,"endHours":12.564827947773999,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:14","startHours":5.536456077775204,"endHours":6.239293264775084,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:57","startHours":6.063583968025114,"endHours":6.942130451774963,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:40","startHours":13.970502321773758,"endHours":14.673339508773637,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.284688256773155,"endHours":17.684688256773153,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:55","startHours":17.484688256773154,"endHours":17.92396149864808,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.234688256773154,"endHours":18.984688256773154,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.86199076077412,"endHours":24.564827947774,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:57","end":"08:16","startHours":6.942130451774963,"endHours":8.259950177399737,"quality":"inauspicious"},{"name":"Śubha","start":"08:16","end":"09:35","startHours":8.259950177399737,"endHours":9.57776990302451,"quality":"auspicious"},{"name":"Roga","start":"09:35","end":"10:54","startHours":9.57776990302451,"endHours":10.895589628649285,"quality":"inauspicious"},{"name":"Udveg","start":"10:54","end":"12:13","startHours":10.895589628649285,"endHours":12.21340935427406,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:32","startHours":12.21340935427406,"endHours":13.531229079898832,"quality":"neutral"},{"name":"Labha","start":"13:32","end":"14:51","startHours":13.531229079898832,"endHours":14.849048805523607,"quality":"auspicious"},{"name":"Amṛta","start":"14:51","end":"16:10","startHours":14.849048805523607,"endHours":16.16686853114838,"quality":"auspicious"},{"name":"Kāla","start":"16:10","end":"17:29","startHours":16.16686853114838,"endHours":17.484688256773154,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:29","end":"19:10","startHours":17.484688256773154,"endHours":19.16686853114838,"quality":"auspicious"},{"name":"Amṛta","start":"19:10","end":"20:51","startHours":19.16686853114838,"endHours":20.849048805523605,"quality":"auspicious"},{"name":"Kāla","start":"20:51","end":"22:32","startHours":20.849048805523605,"endHours":22.531229079898832,"quality":"inauspicious"},{"name":"Śubha","start":"22:32","end":"00:13","startHours":22.531229079898832,"endHours":24.21340935427406,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:54","startHours":24.21340935427406,"endHours":25.895589628649283,"quality":"inauspicious"},{"name":"Udveg","start":"01:54","end":"03:35","startHours":25.895589628649283,"endHours":27.57776990302451,"quality":"inauspicious"},{"name":"Chala","start":"03:35","end":"05:16","startHours":27.57776990302451,"endHours":29.259950177399737,"quality":"neutral"},{"name":"Labha","start":"05:16","end":"06:57","startHours":29.259950177399737,"endHours":30.942130451774965,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:57","end":"07:57","startHours":6.942130451774963,"endHours":7.942130451774963,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:57","end":"08:57","startHours":7.942130451774963,"endHours":8.942130451774963,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:57","end":"09:57","startHours":8.942130451774963,"endHours":9.942130451774963,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:57","end":"10:57","startHours":9.942130451774963,"endHours":10.942130451774963,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:57","end":"11:57","startHours":10.942130451774963,"endHours":11.942130451774963,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:57","end":"12:57","startHours":11.942130451774963,"endHours":12.942130451774963,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:57","end":"13:57","startHours":12.942130451774963,"endHours":13.942130451774963,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:57","end":"14:57","startHours":13.942130451774963,"endHours":14.942130451774963,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:57","end":"15:57","startHours":14.942130451774963,"endHours":15.942130451774963,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:57","end":"16:57","startHours":15.942130451774963,"endHours":16.942130451774965,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:57","end":"17:57","startHours":16.942130451774965,"endHours":17.942130451774965,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:57","end":"18:57","startHours":17.942130451774965,"endHours":18.942130451774965,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:57","end":"19:57","startHours":18.942130451774965,"endHours":19.942130451774965,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:57","end":"20:57","startHours":19.942130451774965,"endHours":20.942130451774965,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:57","end":"21:57","startHours":20.942130451774965,"endHours":21.942130451774965,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:57","end":"22:57","startHours":21.942130451774965,"endHours":22.942130451774965,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:57","end":"23:57","startHours":22.942130451774965,"endHours":23.942130451774965,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:57","end":"00:57","startHours":23.942130451774965,"endHours":24.942130451774965,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:57","end":"01:57","startHours":24.942130451774965,"endHours":25.942130451774965,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:57","end":"02:57","startHours":25.942130451774965,"endHours":26.942130451774965,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:57","end":"03:57","startHours":26.942130451774965,"endHours":27.942130451774965,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:57","end":"04:57","startHours":27.942130451774965,"endHours":28.942130451774965,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:57","end":"05:57","startHours":28.942130451774965,"endHours":29.942130451774965,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:57","end":"06:57","startHours":29.942130451774965,"endHours":30.942130451774965,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.417810507043033,"eotMinutes":3.7534387435564067,"ayanamsa":23.8581}},"calendars":{"vikram_samvat":2057,"vikram_samvatsara":"Vijaya","saka_samvat":1922,"saka_samvatsara":"Vikrama","bengali_samvat":1407,"malayalam_era":1176,"nanakshahi_year":531,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Daśamī · Vikram 2057 Vijaya · Śaka 1922 Vikrama"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"perth"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 13, 2000 CE · Perth, Australia · Vidhyamitra","description":"May 13, 2000 CE for Perth, Australia: Śukla Daśamī, sūryodaya 06:57, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2000-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2000-05-13","sa":"https://sa.vidhyamitra.com/city/perth/2000-05-13","hi":"https://hi.vidhyamitra.com/city/perth/2000-05-13","x-default":"https://vidhyamitra.com/city/perth/2000-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T11:34:14.930Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-16T11:34:14.930Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T11:34:14.930Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}